dude, get the reactors, i have the r10s and have already put about 15 pretty hard days on them and absolutely no problems. the things you've heard are simply defects that every company runs into. plus, if you like the 1260s, then you could eventually get more line skis and not waste money on more bindings.
also, if you have reactors on your line skis, i pretty sure the warranty extends to 2 years as opposed to 1